The email lands on a Tuesday morning.
It appears to be from the CEO. The name is correct. The phrasing feels believable. Even the signature seems familiar.
"Hey — can you help me with something fast? I'm stuck in meetings all day. I need you to take care of a vendor payment. I'll explain later."
The new hire hesitates.
They've only been at the company for four days. They're still learning the workflow. They don't yet know what a normal request looks like, and they certainly don't want to be the person who challenges the CEO in week one.
So they do it.
And in a single click, the breach begins.
Why week one is the riskiest week
Each spring, organizations welcome a fresh round of employees, including new graduates and summer interns entering their first professional roles. For the business, it's onboarding season. For cybercriminals, it's prime hunting ground.
According to Keepnet Lab's 2025 New Hires Phishing Susceptibility Report, CEO impersonation emails are 45% more likely to succeed with new hires than with experienced employees.
Hackers don't start with your most experienced staff. They target the people still trying to understand the culture, because early on, everything is unfamiliar and confidence is still forming.
A new employee doesn't yet know what a routine request should sound like. They don't know how the CEO normally communicates. They haven't had time to build instincts, and attackers exploit that uncertainty.
But the real issue isn't the employee. The biggest risk isn't someone being reckless. It's someone trying hard to be helpful.
If you lead a team, you probably already know who would reply before thinking twice.
The real weakness isn't training. It's the process.
Picture that employee's first day again.
The laptop wasn't ready. Access wasn't fully provisioned. The email account was still pending. They borrowed a coworker's login to check one item quickly. They saved a document locally because the shared drive wasn't available. They used a personal phone to look up a client number because it was faster.
None of it seemed dangerous. It felt practical. It felt like getting through a busy first day with limited support.
But during that first week, while the basics are still being put in place, several hidden risks can form. Shared credentials create untracked access, documents sit outside backup systems, personal devices touch company data, and no one explains what to do when something feels suspicious.
The same Keepnet report found that new employees are 44% more susceptible to phishing than tenured staff. That difference doesn't come from ignorance alone. It comes from disorder. When onboarding is messy, security becomes an afterthought. That's exactly the environment a phishing email is designed to exploit.
The attack didn't create the weakness. The first day did.
What a secure first day should include
Preventing this doesn't require a lengthy security lecture on day one. It requires three things to be ready before the new hire even arrives.
1. Their access is set up before they start.
That means the laptop is prepared, credentials are created, and permissions are clearly assigned. No borrowed logins, no temporary fixes, and no "we'll handle it later this week."
2. They understand what a normal request looks like.
A quick 10-minute conversation can make a major difference. Does the CEO ever email about payments? Does anyone? What should they do if a message feels suspicious? This isn't formal training; it's practical orientation.
3. They have a safe place to ask questions.
The employee who paused before clicking that message probably would have checked with someone if they had known who to ask. Many first-week mistakes happen quietly because new hires don't want to look unsure.
Give them a contact. Give them a process.
Most security incidents don't happen because someone chooses to break the rules. They happen because the rules haven't been made clear yet.
Maybe your onboarding is already strong. Maybe your team is small enough that first days feel personal instead of procedural. But if a new hire has ever had to improvise through week one — or if you're bringing someone on this spring — it's worth fixing the gaps before that Tuesday email shows up.
Click here or give us a call at 253-292-3329 to schedule your free 15-Minute Discovery Call.
And if you know another business owner preparing to hire, pass this along. The best time to close the door is before anyone tries the handle.
